BUY DS1210N https://www.utsource.net/itm/p/443597.html
Nonvolatile Controller
Description: The DS1210N is a nonvolatile memory module from Dallas Semiconductor. It is an 8-pin DIP package that provides 256 bytes of nonvolatile RAM. Features: - 256 bytes of nonvolatile RAM - 8-pin DIP package - Low power consumption - Low voltage operation - Data retention for 10 years Applications: - Automotive - Industrial - Medical - Security - Telecommunications (For reference only)